sour

B1 · Intermediate

adj. food that has gone bad and smells or tastes sharp and unpleasant.

adj. having turned rancid or fermented due to spoilage, typically resulting in an acidic odour or flavour.

“I had to throw out the milk because it had gone sour in the heat.”

“The distinct smell of sour cream indicated that the dairy products had been left out of the refrigerator for far too long.”

B2 · Upper Intermediate

adj. unfriendly, unhappy, or annoyed.

adj. morose, peevish, or ill-tempered in disposition.

“He had a sour look on his face after he lost the game.”

“The negotiations ended on a sour note, with both parties refusing to make further concessions or schedule a follow-up meeting.”

B2 · Upper Intermediate

v. to stop being friendly or successful.

v. to become unpleasant, disenchanted, or hostile; to spoil a relationship or situation.

“Their friendship began to sour after they started working together.”

“The relationship between the two countries soured rapidly following the dispute over maritime borders and fishing rights.”

B2 · Upper Intermediate Countable noun Cooking

n. a type of alcoholic drink made with lemon or lime juice.

n. a category of mixed drink consisting of a base spirit, lemon or lime juice, and a sweetener.

“He ordered a whiskey sour at the bar while waiting for his friends.”

“A classic pisco sour requires egg whites to create the signature frothy texture that balances the sharp citrus profile.”